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1. Introduction to IO, NIO and Netty1.1 blocking I / O Synchronous blocking I/O mode: when a thread executes the read() or write() method, the thread will block until it reads some data or writes out all the data. During this period, the thread cannot do anything else. When the number of active connections is not particularly high (less than 10 ...

In previous installments, we analyzed the service startup, client connection and client message processing processes of Netty. In this installment, we will explain an extremely important component of Netty, event loop. NioEventLoopGroup analysis When we usually use Netty, we usually operate with NioEventLoopGroup, so we start with NioEventLoo ...

8. Tools for sharing models 8.1 thread pool Compared with pooling technology, it is common. Thread pool, database connection pool, Http connection pool and so on are all applications of this idea. The idea of pooling technology is mainly to reduce the consumption of resources and improve the utilization of resources. Thread pools provid ...

1, Heartbeat What is heartbeat In TPC, after the client and server establish a connection, they need to send data packets regularly to inform each other that they are still online to ensure the effectiveness of the TPC connection. If a connection has no heartbeat for a long time, it needs to be disconnected in time, otherwise the server will ...

Last article , we analyzed the initialization process of Netty server startup. Today, let's analyze the Reactor thread model in Netty Before analyzing the source code, let's analyze where EventLoop is used? Connection listening registration of NioServerSocketChannel IO event registration for NioSocketChannel NioServerSocketChannel connection ...

1. Introduction to Netty 1.1. Netty is a client server framework based on Java NIO. Using netty, you can quickly develop network applications. Netty provides a high-level abstraction to simplify the programming of TCP and UDP servers, but you can still use the underlying API. 1.2. The internal implementation of netty is very complex, but nett ...

Channel IO Operations Link, where a Channel represents an open connection to an entity. In network IO, it is usually used to read/write data with Buffer. Implementations of some of the major Channel s in JAVA NIO FileChannel: Read and write data from a file.DatagramChannel: Can read and write data in the network through UDP.SocketChannel: ...

2021SC@SDUSC In this blog, we will focus on the core components of netty, EventLoop and EventLoopGroup. catalogue 1, Introduction example 2, Analysis 1. Relationship between nioeventloop and NioEventLoopGroup 2. Constructor of nioeventloop 3. newChild function in nioeventloopgroup I   Introduction example Netty provides a large ...

The beginning of 2020 is extraordinary. I will stay at home and study io again io is divided into bio,nio,aio Among them, netty belongs to nio, and aio has not been widely used, so it has great potential in the future Understand several concepts Synchronous and asynchronous Blocking and non blockingio m ...

netty chat explain: My thoughts demonstration Chat server Chat initialization configuration Client processing message Front end code epilogue explain: I found that it takes a lot of energy to write a blog. In order to leave more time for promotion, I just post the code. Learning address: https: ...